热等静压处理Astroloy合金时效处理效果的研究。

Study of the Effects of Aging Treatment on Astroloy Processed via Hot Isostatic Pressing.

作者信息

Bassini Emilio, Cattano Giulio, Marchese Giulio, Biamino Sara, Ugues Daniele, Lombardi Mariangela, Vallillo Gianfranco, Picqué Benjamin

机构信息

Politecnico di Torino, DISAT: Department of Applied Science and Technology, Corso Duca degli Abruzzi, 24, 10129 Torino, Italy.

Center for Sustainable Futures @ Polito, Istituto Italiano di Tecnologia, Corso Trento 21, 10129 Turin, Italy.

出版信息

Materials (Basel). 2019 May 9;12(9):1517. doi: 10.3390/ma12091517.

DOI:10.3390/ma12091517

PMID:31075902

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6539100/

Abstract

The effect of aging treatment on Astroloy fabricated via hot isostatic pressing and subjected to super-, and sub- solvus solutioning has been investigated. The evolution of hardness and microstructural features were followed after each step of the treatment. Since this alloy is commonly subjected to a double aging treatment at two different temperatures, particular attention was given to the effectiveness of the first aging treatment compared to the second one. Coarsening and modification of the γ' reinforcing system together with carbides formation were made the object of research. The cooling rate used after solutioning treatment was also kept into account. Finally, a model to describe secondary and ternary gamma prime coarsening upon aging treatments is presented.

摘要

研究了时效处理对通过热等静压制造并经过过饱和和亚饱和固溶处理的Astroloy合金的影响。在处理的每个步骤之后，跟踪硬度和微观结构特征的演变。由于这种合金通常在两个不同温度下进行双重时效处理，因此特别关注第一次时效处理与第二次时效处理相比的有效性。γ'强化系统的粗化和改性以及碳化物的形成成为研究对象。固溶处理后使用的冷却速率也被考虑在内。最后，提出了一个描述时效处理时二次和三次γ'粗化的模型。